19280555

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{557}}^1$

素因数の和:635

約数の個数: 32

約数和(自身を含む): 28283904

約数和(自身を除く): 9003349

約数列:

[1, 5, 7, 23, 35, 43, 115, 161, 215, 301, 557, 805, 989, 1505, 2785, 3899, 4945, 6923, 12811, 19495, 23951, 34615, 64055, 89677, 119755, 167657, 448385, 550873, 838285, 2754365, 3856111, 19280555]

約数ペア:

[(1, 19280555), (5, 3856111), (7, 2754365), (23, 838285), (35, 550873), (43, 448385), (115, 167657), (161, 119755), (215, 89677), (301, 64055), (557, 34615), (805, 23951), (989, 19495), (1505, 12811), (2785, 6923), (3899, 4945)]